* { box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  margin: 0;
  background: #0d0221;
  color: #f2e9ff;
}

.page {
  max-width: 700px;
  margin: 0 auto;
  padding: 1rem;
}

/* ---------- Nyan cat scene ---------- */

.nyan-scene {
  position: relative;
  height: 130px;
  overflow: hidden;
  background: linear-gradient(180deg, #0d0221 0%, #1b0b34 60%, #2a1150 100%);
  border-bottom: 4px solid #000;
}

.stars {
  position: absolute;
  inset: 0;
  background-repeat: no-repeat;
  background-image:
    radial-gradient(2px 2px at 8% 20%, #fff, transparent),
    radial-gradient(2px 2px at 22% 65%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 38% 15%, #fff, transparent),
    radial-gradient(2px 2px at 52% 78%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 68% 30%, #fff, transparent),
    radial-gradient(2px 2px at 82% 55%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 93% 18%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 14% 88%, #fff, transparent),
    radial-gradient(2px 2px at 62% 92%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 4% 48%, #fff, transparent);
  animation: twinkle 2.4s ease-in-out infinite alternate;
}

@keyframes twinkle {
  from { opacity: 0.35; }
  to { opacity: 1; }
}

.rainbow-trail {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 42px;
  transform: translateY(-50%);
  background: repeating-linear-gradient(
    90deg,
    #ff5e5e 0 24px,
    #ff9d5e 24px 48px,
    #ffe75e 48px 72px,
    #5eff8f 72px 96px,
    #5ec3ff 96px 120px,
    #7d5eff 120px 144px,
    #ff5ecb 144px 168px
  );
  background-size: 168px 100%;
  animation: trail-move 2s linear infinite;
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.2);
}

@keyframes trail-move {
  from { background-position: 0 0; }
  to { background-position: -168px 0; }
}

.nyan-cat {
  position: absolute;
  top: 50%;
  left: 20%;
  width: 90px;
  height: 46px;
  transform: translate(-50%, -50%);
  animation: bob 0.6s ease-in-out infinite alternate;
}

@keyframes bob {
  from { transform: translate(-50%, -56%); }
  to { transform: translate(-50%, -44%); }
}

.cat-body {
  position: absolute;
  left: 8px;
  right: 30px;
  top: 8px;
  bottom: 8px;
  background: repeating-linear-gradient(90deg, #f6c99a 0 10px, #f7a8c4 10px 20px);
  border: 3px solid #7a4b2e;
  border-radius: 6px;
}

.cat-legs {
  position: absolute;
  bottom: -6px;
  left: 12px;
  right: 36px;
  display: flex;
  justify-content: space-between;
}

.cat-legs span {
  width: 6px;
  height: 10px;
  background: #f7a8c4;
  border: 2px solid #7a4b2e;
  border-radius: 2px;
  animation: run 0.3s steps(2) infinite;
}

.cat-legs span:nth-child(2n) {
  animation-delay: 0.15s;
}

@keyframes run {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(3px); }
}

.cat-head {
  position: absolute;
  right: -6px;
  top: -6px;
  width: 34px;
  height: 34px;
  background: #c7c7c7;
  border: 3px solid #6b6b6b;
  border-radius: 8px;
}

.cat-ear {
  position: absolute;
  top: -8px;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 10px solid #6b6b6b;
}

.cat-ear-left { left: 1px; }
.cat-ear-right { right: 1px; }

.cat-cheek {
  position: absolute;
  width: 8px;
  height: 6px;
  background: #ffb6d5;
  border-radius: 50%;
  top: 16px;
}

.cat-cheek-left { left: -3px; }
.cat-cheek-right { right: -3px; }

.cat-eye {
  position: absolute;
  width: 4px;
  height: 4px;
  background: #222;
  border-radius: 50%;
  top: 10px;
}

.cat-eye-left { left: 8px; }
.cat-eye-right { right: 8px; }

.cat-mouth {
  position: absolute;
  width: 6px;
  height: 3px;
  border-bottom: 2px solid #222;
  border-radius: 0 0 6px 6px;
  left: 14px;
  top: 18px;
}

/* ---------- Header ---------- */

header {
  text-align: center;
  margin: 1.25rem 0;
}

header h1 {
  font-family: "Press Start 2P", ui-monospace, monospace;
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0;
  background: linear-gradient(90deg, #ff5e5e, #ffe75e, #5eff8f, #5ec3ff, #7d5eff, #ff5ecb);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.35);
}

/* ---------- Buttons ---------- */

button {
  font-family: "Press Start 2P", ui-monospace, monospace;
  font-size: 0.7rem;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(90deg, #7d5eff, #ff5ecb);
  border: 2px solid #000;
  border-radius: 4px;
  padding: 0.6rem 0.9rem;
  box-shadow: 3px 3px 0 #000;
  transition: transform 0.1s ease;
}

button:hover:not(:disabled) {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 #000;
}

button:disabled {
  cursor: default;
  background: #5a5a6e;
  opacity: 0.7;
  box-shadow: 3px 3px 0 #000;
}

/* ---------- Form ---------- */

#idea-form {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 1rem 0;
  padding: 1rem;
  background: #1b0b34;
  border: 3px solid #000;
  border-radius: 8px;
}

#idea-form label {
  font-family: "Press Start 2P", ui-monospace, monospace;
  font-size: 0.65rem;
}

#idea-form input,
#idea-form textarea {
  padding: 0.5rem;
  font-size: 1rem;
  font-family: system-ui, sans-serif;
  border: 2px solid #000;
  border-radius: 4px;
}

.error {
  color: #ff9db6;
  font-size: 0.85rem;
}

/* ---------- Sort controls ---------- */

#sort-controls {
  margin: 1.25rem 0;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

#sort-controls span {
  font-family: "Press Start 2P", ui-monospace, monospace;
  font-size: 0.65rem;
}

.sort-btn {
  background: linear-gradient(90deg, #5ec3ff, #5eff8f);
  padding: 0.4rem 0.8rem;
}

.sort-btn.active {
  background: linear-gradient(90deg, #ff5e5e, #ffe75e);
}

/* ---------- Idea cards ---------- */

.idea-card {
  background: #fff8f0;
  color: #1b0b34;
  border: 3px solid #000;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
  border-top: 6px solid;
  border-image: linear-gradient(90deg, #ff5e5e, #ffe75e, #5eff8f, #5ec3ff, #7d5eff, #ff5ecb) 1;
}

.idea-card h3 {
  margin: 0 0 0.5rem;
  font-family: "Press Start 2P", ui-monospace, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
}

.idea-card p {
  margin: 0;
  line-height: 1.4;
}

.idea-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.idea-meta .votes {
  font-family: "Press Start 2P", ui-monospace, monospace;
  font-size: 0.65rem;
  color: #7a4b2e;
}

.idea-meta .date {
  color: #6b6b6b;
}

.vote-btn {
  font-size: 0.6rem;
  padding: 0.4rem 0.7rem;
}